求lim 1+1/2+...+1/2^(n-1)/1+1/2^2+...1/2^2(n-1) n→∞
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求lim1+1/2+...+1/2^(n-1)/1+1/2^2+...1/2^2(n-1)n→∞求lim1+1/2+...+1/2^(n-1)/1+1/2^2+...1/2^2(n-1)n→∞求lim
求lim 1+1/2+...+1/2^(n-1)/1+1/2^2+...1/2^2(n-1) n→∞
求lim 1+1/2+...+1/2^(n-1)/1+1/2^2+...1/2^2(n-1) n→∞
求lim 1+1/2+...+1/2^(n-1)/1+1/2^2+...1/2^2(n-1) n→∞
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